baber/WOPTO huggingface dataset:
Patent GB-1377753-A (GB)
Title: Connector means
IPC: F16B7/04
Filed: 1972-03-10
Abstract: 1377753 Structural joints SINTACEL Ltd 10 March 1972 [14 April 1971] 9448/71 Heading F2M  A connector comprises an elongate structural element 11 and channel section telescopically engageable, frictionally locking male and female members 10, 12, the male member projecting laterally from element 11, being secured thereto by means such as fillet welds (W) on the internal surfaces thereof and having outer surfaces provided by side walls 10A, 10B, the central wall and the free edges of side walls 10A, 10B engaging inner surfaces of the female member provided by the side walls 12A, 12B, the central wall and the returned edges 12C, 12D. The male member may also have returned edges. Members 10, 12 may additionally be secured by screws passed through the overhanging portions of side walls 10A, 12A. The connector may be applied to table legs 11, each leg having orthogonally projecting male members secured thereto and engageable with common female members.
Patent GB-293409-A (GB)
Title: Improvements in or relating to valve-gear for internal-combustion engines
IPC: F01L5/10
Filed: 1927-04-06
Abstract: 293,409. Fedden, A. H. R., Butler, L. F. G., and Bristol Aeroplane Co., Ltd. April 6, 1927. Valve gear.-The sleeve valves of a radialcylinder engine are actuated by cranked or equivalent shafts mounted adjacent each cylinder parallel to the crank shaft and driven by gearing therefrom. The Figure shows one of the valve shafts 14, which has a crank 13 giving combined reciprocating and oscillating motion to the sleeve valve 10, and is driven by epicyclic gearing comprising a member 17 mounted on an eccentric portion 16 on the crank shaft and formed at one end with external teeth 18 engaging a stationary gear 20 coaxial with the crank shaft, and at the other end with internal teeth 19 engaging a gear 21 loosely and coaxially mounted on the crank shaft, a second wheel 22 connected to the gear 21 engaging pinions 23 on each of the valve shafts 14.
Patent GB-541555-A (GB)
Title: Improvements in target apparatus for gunnery practice applicable also to shooting galleries for amusement purposes
IPC: F41J9/14
Filed: 1940-05-30
Abstract: 541,555. Teaching warfare. SHAW, H. May 30, 1940, No. 9479. [Class 119] [Also in Group XL] Apparatus for shooting practice comprises a light-ray gun pivoted upon a fixed support for manipulation by an operator carried by a moving platform, the target being a kinematograph picture of, for example, an aeroplane, ship or vehicle displayed on a screen through which the ray from the gun can pass on to a photo-electric cell by which an indication is given if the gun is correctly aimed when operated. The gun and platform are carried by a trolley 2, the gun 5 being pivoted upon a pillar 4 the end of which is adapted to be lowered into a ground socket 12 by a rack and pinion 8, 9 to anchor the trolley. The platform 24-is carried by a pivoted arm 26 through a bearing 25 and a sleeve 23 which is splined on an inner sleeve 13 and is given a periodic up and down movement by a cam 28 which oscillates the arm 26 through a pivoted arm 27. At the same time the platform receives an oscillating rotary movement by means of a cam 18 engaging a follower bar 17, a rack and pinion 15, 14 and the sleeve 13. The bar 17 is guided for parallel movement by guides in which the rack bar and a further bar 19 slides. The cam spindles 21, 29 are driven from an electric motor 36 through reduction gearing 37 shaft 35 and gearing 33, 34. The picture of for example an aeroplane in flight is projected obliquely on to the target area 39 of a screen 38 the area 39 being of glass or other material such as will transmit the ray from the gun through a focusing cylinder 40a, the axis of which is in line with the gun pivot 6, to a photo-electric cell 41. Interposed between the focusing cylinder 40a and the cell is a rotatable shutter 43 provided with perforations or spaced transparent portions 44 and the movement of which is synchronised with that of the kinematograph apparatus so that the transparent area that lies behind the cylinder 40a corresponds in size with the varying size of the target due for example to the varying distance of the actual object when the kinematograph picture is originally taken. Thus when the gun is correctly directed on to the target the ray passes through a transparent part of the shutter and is focused on the cell 41, the " hit " being indicated by sound amplifying means 42. The cam 28 may be of a contour such as to cause the movement of the platform to simulate that of an aeroplane or ship or in which the gunner is assumed to be accommodated as well as to suit the particular target and it may be synchronised with the film. The gun may be provided with means for simulating the recoil and sounds of a firing arm or the film may be provided with a sound track adapted to be acted upon by the ray from the gun to produce the sounds of a firing arm.
Patent GB-1259879-A (GB)
Title: Apparatus for applying electrostatographic developer material to an electrostatographic imaging or donor member
IPC: G03G15/06
Filed: 1969-02-21
Abstract: 1,259,879. Developing latent electrostatic images. XEROX CORP. Feb. 21, 1969 [Feb.23, 1968], No.9482/69. Heading G2H. An apparatus for developing a latent electrostatic image on a servomaster 10, on a brass donar member or on a photo-conductive surface comprises a chamber 2 having an inlet 5 and outlet 6 for developer, a rotatably mounted screen 3 within the chamber, and means for applying a charge to the developer. The developer may be atomized liquid or powder which is introduced by compressed air through inlets. A corona electrode 4 has an applied voltage of 5 to 10 Kv. As a result of the electric field established between the screen 3, which is earthed, developer particles are attracted to the screen or pass through the screen to the master 10 or other surface to be developed to deposit thereon depending upon the respective polarities and voltage used.
Patent GB-754744-A (GB)
Title: A method of applying a two-component cement to the seam-forming hooks of metal can body-blanks
IPC: C09J5/00
Filed: 1954-03-31
Abstract: A method of applying a reactive two-component cement to hooks on the seams of metal body-blanks for cans comprises coating the inner surface of a hook with one component and immediately thereafter applying to the coating a coating of the second component.  The components may be an epoxyline resin, e.g. a condensation product of epichlorohydrin and bisphenol, and a catalyst, e.g. triethylene tetramine.  The first coating may be sprayed on the hook and the second wiped thereon by a pot and wheel.  Alternatively, the second compponent may be applied to the inner surface of a second hook interengageable with the first hook, and the two hooks interlocked.
Patent GB-454256-A (GB)
Title: Improvements in or relating to navigation aiding directional radio systems
IPC: G01S1/02
Filed: 1935-03-27
Abstract: 454,256. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and KEMP, R. J., Red Tiles, Patching Hall Lane, and PLAISTOWE, D. L., Kilwa, Moulsham Drive, both in Chelmsford. March 27, 1935, No. 9572. [Class 40 (v)] A radio beacon transmits a television signal which gives a distant navigator his bearings in pictorial form, and indicates the critical reading by a sharp change in the overall illumination of the received picture. The beacon station comprises a rotating frame aerial 1, Fig. 1, and an omni-directional aerial 2, which are successively energized from a master oscillator 20 through a change-over switch 19, energized through a coil 17 and a magnetic segment 16 on a disc 15 on the shaft of the scanning motor 10. The result is that for a certain period the frame 1 radiates a carrier modulated by impulses of frame frequency, and then for a longer period the aerial 1 radiates a carrier modulated with picture signals representing the particular part of the compass scale 6 that is then being scanned by a rotating disc 9 and photo-electric cell 11, combined with line impulses from the motor 10 and amplifier 10a, and framing impulses from the coil 17 and amplifier 18. At the receiving end, an omni-directional aerial receives the picture signals, which are projected through a scanning-disc 38 on to a recessed screen 40, as shown in Figs. 3 and 4. The directional signals serve to extinguish a neon lamp 37, Fig. 4, so that at the moment of minimum reception the overall illumination of the screen changes sharply. This indicates when the critical reading should be taken of the bearings shown on the screen.
Patent GB-697997-A (GB)
Title: Control means for liquid-operated servo mechanisms for controlling the supply of liquid fuel to prime movers
Inventor: HARRIS THOMAS ALFRED
IPC: G05D13/40
Filed: 1951-04-25
Abstract: 697,997. Gas turbine plant. LUCAS (INDUSTRIES), Ltd., J. April 22, 1952 [April 25. 1951]. No. 9614/51. Class 110(iii) [Also in Group XXIX] The supply of liquid fuel to a jet propulsion engine or a gas turbine is regulated by a servomechanism supplied with liquid through a control device comprising two co-axial ducts e separated by a ga r  and an occultor or baffle g movable trans versely across the gap ir response to variations ir a liquid pressure, e.g one related to the speed of the prime mover The variable liquid pressure acts on a diaphragm i (or piston) in opposition to a spring-loaded lever k which is subject to the liquid fuel delivery pressure acting in opposition to the loading spring m so that the lever opposes the liquid pressure acting on the diaphragm i with a force which decreases as the fuel delivery pressure increases. One end of the lever k is of cylindrical form and is sealed in a socket p by a resilient ring q. This end is exposed to the fuel delivery pressure through a passage r connected to one end of the servo cylinder a, supplied through a .passage d. The pivot s of the lever k is arranged below the longitudinal central axis of the lever so that the latter acts as a bell crank of which the end face subject to the fuel pressure constitutes the short arm and the part acted on by the spring m the long arm. The variable liquid pressure is admitted to the space above the diaphragm by a pipe o, and the diaphragm is loaded by a spring j. The servo-piston b may control the output of the fuel pump or a fuel throttle or by-pass valve or otherwise regulate the fuel supply. According to the Provisional Specification, the occultor is attached to the diaphragm.
Patent GB-659209-A (GB)
Title: Improvements in thermally released electric cut-outs
IPC: H01H71/18
Filed: 1949-04-08
Abstract: 659,209. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., and FELLA, J. H. April 8, 1949, No. 9616. [Class 38(v)] The bridging contacts 11 of a thermal switch are normally held in engagement with fixed contacts 18, 19 by a pivoted latch 15, releasable by a second lever 6, pivoted at 7 and moved by a thermally - responsive element, e.g. a differentially - expanding rod-andtube 1, 2. The rod 2 carries :a wedge 3 engaging a recess in the arm 5 of lever 6, and on downward movement of rod 2 due to expansion of tube 1, the lever 6 pivots clockwise, thereby causing latch 15 to swing counterclockwise about a pivot 16 to release a roller 13 on latch 15 from a projection 14 on a spring member 10 carrying the contacts 11. The latter are arranged at the ends of forked extensions of member 10 and the switch is reclosed by a push-button 24 after the tube 1 has cooled down, thereby allowing springs 4, 17 to return levers 6, 15 to the Fig. 1 position. The rod and tube may be replaced by two .rods or bars.
Patent GB-750545-A (GB)
Title: -a, -a-dichloropropionic acid esters of the polyhydric alcohols
IPC: C07C69/63
Filed: 1954-04-01
Abstract: The invention comprises the polyhydric alcohol esters of a :a -dichloropropionic acid.  The esters may be made by the action of a :a -dichloropropionic acid on polyhydric alcohols in stoichiometric proportions, in a solvent with esterification catalysts, and with removal of water formed.  In examples the acid is esterified with ethylene glycol, 1:3-propane-diol, 1:2-propane-diol 1-(2-hydroxyethoxy) - 2 - propanol, a mixture designated dipropylene glycol, containing 1-(2-hydropropoxy)-1-propanol, 1,2 - (hydroxypropoxy) - 2 - propanol and 2 - (2 - hydroxy - 1 - methylethoxy) - 1 - propanol, triethylene glycol, 2:3 - butane - diol, and tri-(trimethylene) glycol to give the corresponding bis-a :a -dichloropropionic esters, pentaerythritol and erythritol to give the corresponding tetrakis esters, and glycerol to give the corresponding tris ester.  Other di- and tri-alkylene glycols are mentioned.  Di- and tri-ethylene glycols may be prepared by the action of ethylene glycol on ethylene oxide.  Di- and tri-alkylene glycols of the tri-methylene series may be obtained by heating 1:3-propane diol with iodine.  Mixed alkylene glycol ethers may be obtained by the action of a propane diol, dipropylene glycol or di-(trimethylene) glycol with ethylene oxide, or diethylene glycol or a mixed glycol ether with propylene oxide, or 1:3-propane diol with mixed glycol ethers or unmixed dialkylene glycols, in presence of catalysts.  A mixed dipropylene glycol specified is obtained by the action of 1:3-propane diol on propylene oxide in presence of sulphuric acid. 2 - (2 - hydroxy - 1 - methylethoxy) - 1 - propanol is prepared by the reduction of the diethyl ester of dilactic acid with lithium aluminium anhydride.ALSO:The polyhydric alcohol esters of a  : a -di-chloropropionic acid (see Group IV(b)) may be used as herbicides, dispersed on inert finely-divided solids and employed as dusts, or dispersed in water with wetting agents to be used as sprays, and as constituents of oil-in-water emulsions.
Patent GB-857470-A (GB)
Title: Improvements in air-washing apparatus for paint spraying booths
IPC: B05B14/46
Filed: 1956-03-28
Abstract: <PICT:0857470/III/1> Air-washing apparatus comprises a substantially vertical wall 3 having an aperture 4 adapted to fit against or be connected by a short length of ducting 4a to the exhaust fan discharge opening (not shown) of a paint spray booth, the wall 3 forming part of a housing 1 which is open at its underside 5 above a water tank 6, a pump 7 being provided to suck water from the tank 6 and spray it through nozzles 11 to form a curtain across the aperture 4, the water returning through the housing 1 to the tank 6, and through additional nozzles 15 over the curved roof 16 of the housing 1 and over those areas of the walls 14 over which the water forming the curtain does not flow in running back to the tank 6.  Preferably, the spray from the nozzles 15 forms a curtain over air outlets (not shown) at the bottom of the housing 1.
Patent GB-865150-A (GB)
Title: Improvements relating to wear or friction elements
IPC: C22C32/00
Filed: 1958-03-26
Abstract: Parts subjected to wear, such as friction clutches and brakes, especially aircraft disc brakes, have their wear faces formed of sintered material containing nickel aluminide or molybdenum aluminide and a metallic binder such as nickel, the binder preferably being present up to 40% by weight.  The material may also contain hard, refractory substances in amount preferably at least 20% by weight, e.g. nitrides, carbides, oxides, silicates, particularly silicon carbide, mullite or alumina.  Graphite may also be present.  The powder mix is hot pressed in a graphite die at 1,000-3,000 pounds/sq. inch at a temperature in the range 2400-3000 DEG F for about 30 minutes.  The resulting material may then be pressure welded to a backing member, e.g. of nickel-plated steel.
Patent GB-1202314-A (GB)
Title: Apparatus capable of simultaneous filtration and back flushing
IPC: B01D29/11
Filed: 1968-02-28
Abstract: 1,202,314. Simultaneously filtering and backflushing. CARRIER CORP. 28 Feb., 1968 [23 Aug., 1967], No. 9712/68. Heading B1D. Fluid flows into a chamber 63, through an opening in a plate 59 (arrow A), through a basket strainer 73, and into an outlet chamber 65. Partition 69 prevents fluid entering the right-hand half of the basket. After clogging occurs, valve plate 61 is rotated by a handle secured to a shaft 79, thus allowing flow through plate 59 into the right-hand half of the basket 73 but preventing flow into the lefthand half. The left-hand half is backwashed by opening the left-hand valve 77.
Patent GB-288164-A (GB)
Title: Improvements in or relating to the manufacture of multicylinder engines
IPC: G03C1/30
Filed: 1928-03-31
Abstract: 288,164. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Herr, H. T.). March 31, 1927, [Convention date]. Riveting.-In the assembly of engines such as described in Specification 288,161, [Class 122 (i), Engine and like cylinders &c.], having rows of cylinders and vertical crankshafts a jig is used which takes the place of the shafts and about which the engine frame is built. A bed plate 30 for the jig carries four posts 31 held together and distanced by bolts 32 and spacing nuts 34, 35. Horizontal plates 14, 12 are placed inside, the square formed by the posts and then the bearings 16 for the crank shafts are clamped on the posts, the bearings comprising an inner half bearing 26 and cap 27. The engine has three rows of cylinders, each row having four cylinders with their axes arranged to form a square and each cylinder having oppositely moving pistons connected to cranks on the shafts at the corners of the square. With the bearings 16 in position on the posts the engine frame is next assembled; first vertical frame plates 10 are riveted by means of tongues 21 to the bases of the bearings. Vertical corner plates 13 and gusset plates 15 are next positioned and bolted or riveted by means of flanges 18, 19 to the plates 10. Tension plates 22 are connected by angles to the plates 10; they carry threaded stems 42 to pass through the bases of the bearings and take the tension on the frame due to the thrust of the pistons. The corner plates 13 have holes 23 through which the ends of the cylinders project. A top horizontal plate 11 is attached to the plates 10. With the frame attached to the bearings, the caps 27 may be removed, the tie bolts 32 dismantled and the posts taken out of the bearings which are then aligned ready to receive the crank shafts.
Patent GB-453234-A (GB)
Title: A new or improved felt-like material and a method of manufacturing and using such material
IPC: D06N7/00
Filed: 1935-03-29
Abstract: A felt-like material is made by grinding waste vulcanized rubberized fabric, e.g. the carcases of old motor tyres, plasticizing the finely divided material so produced by solvents, heat, oxidation, &c., adding vulcanizing materials and if desired fillers such as wood flour or cork dust, sheeting in a calender, p  rendering the surface of the material tacky by applying solvent or rubber cement or heating and applying fly or linters of cotton, silk, wool, &c.  Fly of different colours and material may be applied in patterns by templates.  The fly may be applied before or after vulcanizing or shaping to form shoes, hats, &c.  The base sheet may be perforated and fly applied to conceal the perforations.
Patent GB-567189-A (GB)
Title: Improvements in electric valve oscillators
IPC: H03B5/10
Filed: 1943-06-18
Abstract: 567,189. Valve generators. GENERAL ELECTRIC CO., Ltd., and McBRIDE, J. M. W. June 18, 1943, No. 9835. [Class 40 (v)] In a generator of the type in which the anode circuit includes an adjustable parallel tuned circuit, the output is made substantially independent of the tuning by including in the anode circuit an impedance which varies with frequency in the same way as the impedance of the tuned circuit. This impedance may be a resonant circuit 12, 11 tuned to a frequency at or above the upper end or at or below the lower end of the tuning range of the frequency-determining circuit according as the adjustable element of that circuit is the inductance or the capacity. If the output is to be frequency modulated, a reactor valve may be connected between point X and ground.
Patent GB-677730-A (GB)
Title: Improvements in devices comprising an oscillator automatically corrected in frequency
IPC: H03L7/06
Filed: 1949-04-12
Abstract: 677,730. Automatic frequency control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 12, 1949 [April 15, 1948], No. 9846/49. Class 38 (iv). An oscillation generator is automatically maintained at a desired frequency by a control voltage derived from a discriminator which is tuned to the desired frequency and is fed both from the controlled generator and from a standard source operating at the desired frequency. The system combines the wide " catching " range of the passive discriminator with the precise synchronization afforded by an active standard oscillator. As shown in Fig. 1, the controlled generator 1 feeds a phasing discriminator comprising coupled tuned circuits 3, 4, rectifiers 5, 6 and load resistors 7, 8. The standard source 2 also feeds to centre taps on the coil 4 and the resistors 7, 8. The voltage across resistors 7, 8 is fed to a frequency control device 14 associated with the generator 1. In a modified circuit, Fig. 3, the coupled circuits 3<SP>1</SP>, 4<SP>1</SP>, which may be tuned respectively above and below the desired frequency, are connected to the control grids of a hexode valve 23, the anode resistor 7<SP>1</SP> providing A.F.C. voltage for the corrector 14. The standard source 2 is coupled to the circuit 4<SP>1</SP>, but does not substantially affect the circuit 3<SP>1</SP> which is weakly coupled to the circuit 4<SP>1</SP>. In a modification of the Fig. 3 circuit, the standard source is inductively coupled to the cathode-earth lead of the valve 23, and is effective only in the outer control grid circuit, the inner control grid circuit 4 being connected by a condenser directly to the cathode. Frequency changers may be interposed between the sources 1, 2 and the discriminator, and the tuning of the latter may be adjustable. The source 1 may be pulsatory, and an harmonic may correspond with the tuning of the discriminator.
Patent GB-220905-A (GB)
Title: Improvements relating to mine or other locomotives worked by air pressure
IPC: B61C7/02
Filed: 1924-04-17
Abstract: 220,905. Imray, O. Y., (Ehrhardt & Sehmer Akt.-Ges.). April 17, 1934. Locomotives, compressed - air. - A quick-running engine and its valves and gearing are contained in a closed casing g attached between the side framing a of the locomotive and easily exchangeable. The engine comprises two pairs of opposed pistons h, h<1> and i geared by wheels m - - m<3> to a driving shaft f and by wheels n, o to a cam shaft p. The shaft f carries a crank e coupled by rods c, d to the driving wheels b.
Patent GB-141366-A (GB)
Title: Improvements in or relating to the production of scenic effects
IPC: A63J5/02
Filed: 1920-04-08
Abstract: 141,366. Tully, R. W. April 25, 1918, [Convention date]. Theatrical appliances.-Relates to a stage device for producing the effect of drifting fog or smoke. The apparatus is shown in plan in Fig. 2. A gauze curtain 4, placed across the proscenium, is illuminated by footlights 9 ; and lamps 15 - - 19 shine through transparent openings representing windows &c. in drop scenes 6, 7. The footlights 9 are arranged in groups 20-25, as shown in the wiring diagram, Fig. 3, and are in series with the lamps 15 - - 19. As the rotary switch 30 is turned, waves of light from the lamps drift across the gauzes 4 and produce the desired' effect.